Finding the Fourth Proportional to 2,162,394,327.84, 2,984,220,038.46 and 1,209,718,234.23
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Solution
The fourth proportional to 2,162,394,327.84, 2,984,220,038.46 and 1,209,718,234.23 is: 1,669,475,982.71
Step by Step Solution
- Step 1: Write the proportion equation
2,162,394,327.84 : 2,984,220,038.46 = 1,209,718,234.23 : x - Step 2: Convert to fraction form
2,162,394,327.84/2,984,220,038.46 = 1,209,718,234.23/x - Step 3: Cross multiply
2,162,394,327.84x = 2,984,220,038.46 × 1,209,718,234.23 - Step 4: Simplify right side
2,162,394,327.84x = 3,610,065,395,479,613,952 - Step 5: Solve for x
x = 3,610,065,395,479,613,952/2,162,394,327.84 - Step 6: Final answer
x = 1,669,475,982.71
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.